CN210372284U - Jet hole type high-proportion pressure reduction energy dissipation valve - Google Patents
Jet hole type high-proportion pressure reduction energy dissipation valve Download PDFInfo
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- CN210372284U CN210372284U CN201921013516.4U CN201921013516U CN210372284U CN 210372284 U CN210372284 U CN 210372284U CN 201921013516 U CN201921013516 U CN 201921013516U CN 210372284 U CN210372284 U CN 210372284U
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Abstract
The utility model discloses a spout cellular type high proportion decompression can valve that disappears, including valve body and disk seat, the entrance point of valve body is provided with the honeycomb duct of intaking, the exit end of valve body is provided with out the water honeycomb duct, be provided with the water conservancy diversion hole on the disk seat, be provided with orifice offset and orifice dissipation piston of mutually supporting in the valve body, the offset inlet opening has been seted up on the stack shell of orifice offset, the inner chamber of orifice offset communicates each other through the inside runner of multiunit offset inlet opening and valve body, the open end of orifice offset communicates each other with play water honeycomb duct, orifice dissipation piston includes piston barrel and arc flange. The utility model has the advantages of reasonable design, the stable performance is reliable, through set up orifice offset device and orifice energy dissipation piston of mutually supporting in the valve body, can effectively subdue the too high rich complementary energy in gravity flow water delivery or the infusion pipeline, makes pipeline pressure stable, does not produce too high destructive water hammer pressure, guarantees conduit safe operation, and application scope is extensive.
Description
Technical Field
The utility model belongs to the technical field of the relief pressure valve, concretely relates to spout cellular type high proportion decompression valve that disappears.
Background
The effect of decompression constant pressure valve is when the fluid pressure in the system reaches the setting value, and decompression constant pressure valve begins the action, makes fluid pass through decompression constant pressure valve, like this, just guarantees that fluid has certain pressure before passing through decompression constant pressure valve. Original decompression constant pressure valve is used for eliminating the rich surplus energy of water delivery water supply pressure pipeline widely, but finds in practice that when great type water pipeline used decompression constant pressure valve, outlet pressure was unstable, had very big pressure fluctuation even, made pipeline safety receive the threat, and its leading cause is that the energy dissipation is not thorough among the decompression process, or bad when good. Meanwhile, the ratio of the inlet pressure to the outlet pressure of the conventional proportional pressure reducing valve is generally less than 5, and the ratio of the inlet pressure to the outlet pressure of the high proportional pressure reducing valve is greater than or equal to 5. Therefore, for the gravity flow water conveying pipeline, a pressure reduction energy dissipater with stable performance is urgently needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that not enough among the above-mentioned prior art is directed against, provide a spout formula high proportion decompression energy dissipation valve, its structural design is reasonable, the stable performance is reliable, through setting up orifice offset and the orifice energy dissipation piston of mutually supporting in the valve body, can effectively subduct the too high surplus energy in gravity flow water delivery or the infusion pipeline, make pipeline pressure stable, do not produce too high destructive water hammer pressure, guarantee conduit safe operation, application scope is extensive.
In order to solve the technical problem, the utility model discloses a technical scheme is: a spout hole type high proportion decompression energy dissipation valve is characterized in that: the jet orifice offset device is fixedly arranged on the valve seat, the opening end of the jet orifice offset device is communicated with the internal flow channel of the valve body through a plurality of groups of offset water inlet holes, each group of offset water inlet holes comprises two symmetrically arranged water inlet holes, the inner cavity of the jet orifice offset device is communicated with the internal flow channel of the valve body through the plurality of groups of offset water inlet holes, the sealing end of the jet orifice offset device is fixedly arranged on the valve seat, the opening end of the jet orifice offset device is communicated with the water outlet flow guide pipe, and the jet orifice energy dissipation piston comprises a cylinder body and a jet orifice energy dissipation piston which are sleeved outside the jet orifice offset device and used for controlling the opening degree of the jet orifice offset device The piston cylinder is a cylindrical sleeve with openings at two ends and is coaxially arranged with the water outlet flow guide pipe, and a sealing structure is arranged on the outer side of the arc-shaped flange.
The spray hole type high-proportion pressure reduction and energy dissipation valve is characterized in that: be provided with the guide plate of intaking with the mutual complex of water conservancy diversion hole in the honeycomb duct of intaking, the guide plate fixed mounting of intaking is close to the one end of disk seat in the honeycomb duct of intaking and its and disk seat fastening connection, be provided with the water guide plate in the honeycomb duct of going out, the one end that is close to the valve body in the honeycomb duct of going out water guide plate fixed mounting.
The spray hole type high-proportion pressure reduction and energy dissipation valve is characterized in that: and one end of the valve body, which is close to the water inlet flow guide pipe, is provided with an opposite impact guide plate, and the opposite impact guide plate is fixedly arranged on the valve body.
The spray hole type high-proportion pressure reduction and energy dissipation valve is characterized in that: the valve body is internally provided with a sealing guide ring which is matched with the piston cylinder, the sealing guide ring is provided with a high-pressure sealing ring, and the high-pressure sealing ring is positioned between the sealing guide ring and the cylinder wall of the piston cylinder.
The spray hole type high-proportion pressure reduction and energy dissipation valve is characterized in that: and a sealing ring matched with the piston cylinder is arranged on one side of the valve seat close to the orifice butting device.
The spray hole type high-proportion pressure reduction and energy dissipation valve is characterized in that: two water inlet holes in each group of the hedging water inlet holes are symmetrically distributed relative to the central axis of the jet orifice hedging device.
The spray hole type high-proportion pressure reduction and energy dissipation valve is characterized in that: the sealing structure is a low-pressure sealing ring, and an annular mounting groove for mounting the low-pressure sealing ring is formed in the outer side of the arc-shaped flange.
The spray hole type high-proportion pressure reduction and energy dissipation valve is characterized in that: the valve body is internally provided with a guide sliding ring matched with the arc-shaped flange, and the low-pressure sealing ring is arranged in the annular mounting groove and tightly attached to the guide sliding ring.
The spray hole type high-proportion pressure reduction and energy dissipation valve is characterized in that: the sealing structure is a diaphragm, an annular edge extending inwards is arranged on the outer side of one end of the arc-shaped flange, and an annular gap for mounting the diaphragm is formed between the annular edge and the arc-shaped flange.
The spray hole type high-proportion pressure reduction and energy dissipation valve is characterized in that: the diaphragm comprises a circular truncated cone-shaped diaphragm sealing cylinder, and a first annular diaphragm connecting piece and a second annular diaphragm connecting piece which are arranged at two ends of the circular truncated cone-shaped diaphragm sealing cylinder, wherein the first annular diaphragm connecting piece is fixedly arranged in the annular gap, and the second annular diaphragm connecting piece is fixed between the valve body and the water outlet flow guide pipe.
Compared with the prior art, the utility model has the following advantage:
1. the utility model discloses an entrance point at the valve body sets up the disk seat to set up the inside runner intercommunication that the honeycomb duct will intake with the valve body in the water conservancy diversion hole on the disk seat, make rivers from the little runner entering valve body in water conservancy diversion hole, then flow from the big runner of valve body exit end, can effectively reduce the rivers pressure of play water honeycomb duct department, and then guarantee the operation safety of pipeline.
2. The utility model discloses a set up one end open-ended orifice offset press in the valve body, can not seted up the multiunit offset inlet opening on the stack shell of orifice offset press, after rivers get into the inside runner of valve body from the guiding hole, accessible multiunit offset inlet opening energy dissipation gets into in the orifice offset press, can effectively eliminate the surplus energy of rivers, improves the hydraulic stability of valve body exit end, and then reduces the destruction of rivers to conduit.
3. The utility model discloses a set up rather than the orifice energy dissipation piston of mutually supporting at the open end of orifice offset, can slide and then control the aperture of orifice offset according to valve body import and outlet pressure automatic control orifice energy dissipation piston, can also make discharge size and downflow water consumption phase-match when realizing the decompression effect, application scope is extensive.
To sum up, the utility model has the advantages of reasonable design, the stable performance is reliable, through set up orifice offset device and orifice energy dissipation piston of mutually supporting in the valve body, can effectively subdue the too high surplus energy in gravity flow water delivery or the infusion pipeline, makes pipeline pressure stable, does not produce too high destructive water hammer pressure, guarantees conduit safe operation, and application scope is extensive.
The technical solution of the present invention is further described in detail by the accompanying drawings and examples.
Drawings
Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention.
Fig. 2 is a schematic structural diagram of embodiment 2 of the present invention.
Fig. 3 is a schematic structural diagram of a diaphragm according to embodiment 2 of the present invention.
Description of reference numerals:
1-a valve body; 2-water inlet flow guide pipe; 3, a water outlet flow guide pipe;
4-1-valve seat body; 4-2-annular mounting seat; 4-3-connecting piece;
5, a jet orifice butting device; 5-1-water inlet; 6-1-piston cylinder;
6-2-arc flange; 7, a guide slip ring; 8-water inlet guide plate;
9-water outlet guide plate; 10-oppositely punching a guide plate; 11-a sealing ring;
12-a sealing guide ring; 13-high pressure seal ring; 14-low pressure seal ring;
15-an annular rim; 16-a membrane; 16-1-a circular truncated cone shaped diaphragm sealing cylinder;
16-2 — a first annular diaphragm connection; 16-3-a second annular diaphragm connection;
17-flow guide holes; and 18, limiting seats.
Detailed Description
Example 1
As shown in figure 1, the utility model comprises a valve body 1 and a valve seat, wherein the inlet end of the valve body 1 is provided with a water inlet flow guide pipe 2, the outlet end of the valve body 1 is provided with a water outlet flow guide pipe 3, the valve seat is fixedly arranged at the inlet end of the valve body 1, the valve seat is provided with a plurality of flow guide holes 17 which are used for communicating the water inlet flow guide pipe 2 with the internal flow passage of the valve body 1, the valve body 1 is internally provided with a nozzle orifice offset device 5 and a nozzle orifice energy dissipation piston which are matched with each other, the nozzle orifice offset device 5 is a tubular structure with an open end, the barrel body of the nozzle orifice offset device 5 is provided with a plurality of sets of offset water inlet holes, each set of offset water inlet holes comprises two symmetrically arranged water inlet holes 5-1, the inner cavity of the nozzle orifice offset device 5 is communicated with the internal flow passage of the valve body 1 through the plurality of, the open end of the orifice flusher 5 is communicated with the water outlet flow guide pipe 3, the orifice energy dissipation piston comprises a piston cylinder 6-1 which is sleeved outside the orifice flusher 5 and used for controlling the opening degree of the orifice flusher 5 and an arc-shaped flange 6-2 which is arranged on the outer side of one end of the piston cylinder 6-1, the piston cylinder 6-1 is a cylindrical sleeve with two open ends and is coaxially arranged with the water outlet flow guide pipe 3, and a sealing structure is arranged on the outer side of the arc-shaped flange 6-2.
During the in-service use, valve body 1, inlet flow guide pipe 2 and outlet flow guide pipe 3 all are coaxial laying, and a plurality of water conservancy diversion holes 17 are evenly laid along the circumference of disk seat, set up the disk seat through the entrance point at valve body 1 to set up the inside runner intercommunication that flow guide hole 17 will inlet flow guide pipe 2 and valve body 1 on the disk seat, make rivers get into in the valve body 1 from the little runner of flow guide hole 17, then flow from the big runner of valve body 1 exit end, can effectively reduce the rivers pressure of outlet flow guide pipe 3 department, and then guarantee the operation safety of pipeline.
It should be noted that, by arranging the orifice flusher 5 in the valve body 1, the end of the orifice flusher 5 close to the water inlet flow guide pipe 2 is closed, the end of the orifice flusher 5 close to the water outlet flow guide pipe 3 is open, and meanwhile, the barrel body of the orifice flusher 5 is provided with a plurality of sets of flushing water inlet holes, and because the pressure of water flow entering the internal flow passage of the valve body 1 from the flow guide hole 17 is relatively high, after water flow enters the internal flow passage of the valve body 1 from the flow guide hole 17, the water flow can enter the orifice flusher 5 after energy dissipation of the plurality of sets of flushing water inlet holes, surplus energy of the water flow can be effectively eliminated, the stability of water pressure at the outlet end of the valve body 1 is improved, and further the damage of the.
In this embodiment, the opening end of the orifice flusher 5 is provided with the orifice energy dissipation piston which is matched with the orifice flusher, so that the opening degree of the orifice flusher 5 can be controlled by sliding the orifice energy dissipation piston, the pressure reduction effect is realized, the water flow is matched with the down-flow water, and the application range is wide.
In actual use, the two ends of the piston cylinder 6-1 are both opened, so that the piston cylinder 6-1 can control the opening degree of the spray hole flusher 5, and simultaneously, water flow in the spray hole flusher 5 can directly flow to the water outlet guide pipe 3 through the left opening of the piston cylinder 6-1 from the opening end of the spray hole flusher 5, and further, the stability of outlet pressure can be facilitated.
It should be noted that, by arranging the sealing structure at the outer side of the arc-shaped flange 6-2, the outlet end of the valve body 1 can be sealed, and the water in the valve body 1 is prevented from directly flowing out of the water outlet flow guide pipe 3 to damage the water pipeline without energy dissipation and pressure reduction of the jet orifice to the flusher 5.
In the embodiment, the valve seat comprises a valve seat body 4-1 positioned in the water inlet flow guide pipe 2 and an annular mounting seat 4-2 arranged between the water inlet flow guide pipe 2 and the valve body 1, the valve seat body 4-1 is a circular plate, the valve seat body 4-1 and the water inlet flow guide pipe 2 are coaxially arranged, the annular mounting seat 4-2 is annular and is coaxially arranged with the valve seat body 4-1, the inner diameter of the annular mounting seat 4-2 is larger than the diameter of the annular mounting seat 4-2, the valve seat body 4-1 and the annular mounting seat 4-2 are connected into a whole through a plurality of connecting pieces 4-3, and a channel between every two adjacent connecting pieces 4-3 is a flow guide hole 17.
When the pressure reducing device is actually used, the outer side of one end, close to the valve seat, of the piston cylinder 6-1 is provided with the annular pressure reducing groove, and the impact of water flow on the piston cylinder 6-1 can be effectively reduced by arranging the annular pressure reducing groove on the outer side of the piston cylinder 6-1.
In this embodiment, the open end of the orifice offset 5 is provided with a limiting seat 18 matched with the orifice offset, the limiting seat 18 includes two circular ring-shaped supports parallel to each other, the two circular ring-shaped supports are connected and fixed by a fastening member, the two circular ring-shaped supports are coaxially arranged with the orifice offset 5, and the inner diameters of the two circular ring-shaped supports are equal to the inner diameter of the orifice offset 5.
In this embodiment, be provided with the guide plate 8 of intaking that mutually supports with water conservancy diversion hole 17 in the honeycomb duct 2 of intaking, 8 fixed mounting of guide plate of intaking are close to the one end of disk seat and its and disk seat fastening connection in honeycomb duct 2 of intaking, be provided with water guide plate 9 in the honeycomb duct 3 of going out, the one end that is close to valve body 1 in honeycomb duct 3 of going out water guide plate 9 fixed mounting.
During the in-service use, through set up into water guide plate 8 in honeycomb duct 2 of intaking, can be through into water guide plate 8 rivers water conservancy diversion in with the honeycomb duct 2 of intaking to water conservancy diversion hole 17 in, and then go into to act on in the valve body 1, can effectively improve the decompression energy dissipation efficiency in the valve body 1.
In this embodiment, through be provided with out water guide plate 9 in going out water honeycomb duct 3, can make rivers in the valve body 1 quick through go into the pipeline behind the play water honeycomb duct 3, can effectively improve water delivery efficiency.
In this embodiment, an opposite impact guide plate 10 is arranged at one end of the valve body 1 close to the water inlet flow guide pipe 2, and the opposite impact guide plate 10 is fixedly installed on the valve body 1.
When the jet orifice impact device is used practically, the impact guide plate 10 is arranged in the valve body 1, and water flowing into the valve body 1 can be guided to the jet orifice impact device 5 through the impact guide plate 10.
In this embodiment, a sealing guide ring 12 which is matched with the piston cylinder 6-1 is arranged in the valve body 1, a high-pressure sealing ring 13 is arranged on the sealing guide ring 12, and the high-pressure sealing ring 13 is located between the sealing guide ring 12 and the cylinder wall of the piston cylinder 6-1.
During actual use, the sealing guide ring 12 matched with the piston cylinder 6-1 is arranged in the valve body 1, so that the piston cylinder 6-1 can be guided, the sliding precision of the jet hole energy dissipation piston is improved, the possibility of failure of the pressure reduction energy dissipation valve is reduced, and water in the water inlet flow guide pipe 2 can be effectively prevented from directly flowing to the water outlet flow guide pipe 3, so that the influence on a pipeline is further caused.
It should be noted that, the gap between the sealing guide ring 12 and the piston cylinder 6-1 is sealed by the high-pressure sealing ring 13, so that water leakage at the gap between the piston cylinder 6-1 and the sealing guide ring 12 can be avoided, and the stability of the water flow pressure at the outlet end of the valve body 1 is further affected.
In this embodiment, a sealing ring 11 which is matched with the piston cylinder 6-1 is arranged on one side of the valve seat close to the orifice impactor 5.
In practical use, the sealing ring 11 is arranged on the valve seat, when the piston cylinder 6-1 slides to the leftmost side, the end part of the piston cylinder 6-1 is tightly matched with the sealing ring 11, the spray hole hedging device 5 is in a fully-closed state at the moment, and when the piston cylinder 6-1 slides rightwards to enable all hedging water inlets on the spray hole hedging device 5 to be exposed, the spray hole hedging device 5 is in a fully-opened state.
In this embodiment, two water inlets 5-1 of each group of the offset water inlets are symmetrically arranged relative to the central axis of the orifice offset device 5.
During actual use, two water inlet holes 5-1 in each group of the hedging water inlet holes are symmetrically arranged relative to the central axis of the jet orifice hedging device 5, so that water flow entering the jet orifice hedging device 5 can be mutually offset pairwise, surplus energy of the water flow is eliminated, and the stability of the water flow outlet pressure is improved conveniently.
It should be noted that the side wall of the nozzle orifice aligner 5 is further provided with a plurality of water inlet grooves along the axial direction thereof, and the water inlet grooves penetrate through the opening end of the nozzle orifice aligner 5.
In this embodiment, the sealing structure is a low-pressure sealing ring 14, and an annular mounting groove for mounting the low-pressure sealing ring 14 is formed in the outer side of the arc-shaped flange 6-2.
In practical use, the annular mounting groove is formed in the outer circumference of the arc-shaped flange 6-2 and used for mounting the low-pressure sealing ring 14, so that the mounting reliability of the low-pressure sealing ring 14 can be improved, and meanwhile, the low-pressure sealing ring 14 can synchronously move along with the arc-shaped flange 6-2, and the sealing between the arc-shaped flange 6-2 and the guide sliding ring 7 is realized.
In this embodiment, a guiding slip ring 7 matched with the arc-shaped flange 6-2 is arranged in the valve body 1, and the low-pressure sealing ring 14 is arranged in the annular mounting groove and tightly attached to the guiding slip ring 7.
When the energy-dissipation piston is actually used, the arc-shaped flange 6-2 is arranged on the outer side of one end of the piston cylinder 6-1 to form the jet hole energy-dissipation piston, and the guide slip ring 7 matched with the arc-shaped flange 6-2 is arranged at the outlet end of the valve body 1, so that the jet hole energy-dissipation piston can slide in a certain area.
Example 2
As shown in fig. 2, the present embodiment is different from embodiment 1 in that: the sealing structure is a diaphragm 16, an annular edge 15 extending inwards is arranged on the outer side of one end of the arc-shaped flange 6-2, and an annular gap for mounting the diaphragm 16 is formed between the annular edge 15 and the arc-shaped flange 6-2.
In practical use, when the outlet end of the valve body 1 is sealed, the diaphragm 16 can be adopted for sealing, and the sealing effect is good.
In this embodiment, the annular edge 15 and the arc-shaped flange 6-2 are coaxially arranged, and an annular gap is formed between the annular edge 15 and the arc-shaped flange 6-2, so that the diaphragm 16 can be conveniently installed.
As shown in fig. 3, in this embodiment, the diaphragm 16 includes a circular truncated cone-shaped diaphragm sealing cylinder 16-1, and a first annular diaphragm connecting piece 16-2 and a second annular diaphragm connecting piece 16-3 which are disposed at two ends of the circular truncated cone-shaped diaphragm sealing cylinder 16-1, the first annular diaphragm connecting piece 16-2 is fixedly installed in the annular gap, and the second annular diaphragm connecting piece 16-3 is fixed between the valve body 1 and the water outlet flow guide pipe 3.
In practical use, the first annular diaphragm connecting piece 16-2 is arranged towards the inner side of the circular truncated cone-shaped diaphragm sealing cylinder 16-1, and the second annular diaphragm connecting piece 16-3 and the first annular diaphragm connecting piece 16-2 are parallel to each other and are arranged towards the outer side of the circular truncated cone-shaped diaphragm sealing cylinder 16-1.
The utility model discloses during the in-service use, when carrying out the water delivery of conduit, rivers enter into inlet guide pipe 2 from the pressure owner, under the effect of inlet guide plate 8, rivers enter into valve body 1 from water conservancy diversion hole 17 in, make the entrance point pressure of valve body 1 be greater than outlet end pressure, orifice energy dissipation piston slides to the exit end of valve body 1 under the effect of pressure differential, realizes opening of relief pressure valve, water in the valve body 1 enters into orifice counterpulsator 5 from inlet opening 5-1, and then flows out to the conduit through outlet guide pipe 3; when the pressure main pipe stops water delivery, the pressure of the outlet end of the valve body 1 is larger than the pressure of the inlet end, and the jet hole energy dissipation piston slides towards the inlet end of the valve body 1 under the action of differential pressure to realize closing of the pressure reducing valve.
The above, only be the utility model discloses a preferred embodiment, it is not right the utility model discloses do any restriction, all according to the utility model discloses the technical entity all still belongs to any simple modification, change and the equivalent structure change of doing above embodiment the utility model discloses technical scheme's within the scope of protection.
Claims (10)
1. A spout hole type high proportion decompression energy dissipation valve is characterized in that: the water inlet and outlet valve comprises a valve body (1) and a valve seat, wherein a water inlet guide pipe (2) is arranged at the inlet end of the valve body (1), a water outlet guide pipe (3) is arranged at the outlet end of the valve body (1), the valve seat is fixedly arranged at the inlet end of the valve body (1), a plurality of guide holes (17) which are used for communicating the water inlet guide pipe (2) with an internal flow passage of the valve body (1) are arranged on the valve seat, a nozzle orifice offset device (5) and a nozzle orifice energy dissipation piston which are matched with each other are arranged in the valve body (1), the nozzle orifice offset device (5) is of a tubular structure with an opening at one end, a plurality of groups of offset water inlet holes are formed in a barrel body of the nozzle orifice offset device (5), each group of offset water inlet holes comprises two symmetrically arranged water inlet holes (5-1), an inner cavity of the nozzle orifice offset device (5) is communicated with the, the sealing end of the orifice offset device (5) is fixedly mounted on the valve seat, the opening end of the orifice offset device (5) is communicated with the water outlet flow guide pipe (3), the orifice energy dissipation piston comprises a piston cylinder (6-1) and an arc-shaped flange (6-2), the piston cylinder is sleeved outside the orifice offset device (5) and used for controlling the opening degree of the orifice offset device (5), the arc-shaped flange is arranged on the outer side of one end of the piston cylinder (6-1), the piston cylinder (6-1) is a cylindrical sleeve with two open ends and is coaxially arranged with the water outlet flow guide pipe (3), and a sealing structure is arranged on the outer side of the arc-shaped flange (6-2).
2. The orifice-type high-ratio pressure reducing and energy dissipating valve according to claim 1, wherein: be provided with in inlet flow guide (2) guide plate (8) of intaking mutually supporting with water conservancy diversion hole (17), inlet flow guide plate (8) fixed mounting is close to the one end of disk seat and its and disk seat fastening connection in inlet flow guide (2), be provided with out water guide plate (9) in play water flow guide (3), go out water guide plate (9) fixed mounting and be close to the one end of valve body (1) in play water flow guide (3).
3. The orifice-type high-ratio pressure reducing and energy dissipating valve according to claim 1, wherein: one end of the valve body (1) close to the water inlet guide pipe (2) is provided with an opposite impact guide plate (10), and the opposite impact guide plate (10) is fixedly installed on the valve body (1).
4. The orifice-type high-ratio pressure reducing and energy dissipating valve according to claim 1, wherein: the piston valve is characterized in that a sealing guide ring (12) matched with the piston cylinder (6-1) is arranged in the valve body (1), a high-pressure sealing ring (13) is arranged on the sealing guide ring (12), and the high-pressure sealing ring (13) is located between the sealing guide ring (12) and the cylinder wall of the piston cylinder (6-1).
5. The orifice-type high-ratio pressure reducing and energy dissipating valve according to claim 1, wherein: and a sealing ring (11) matched with the piston cylinder (6-1) is arranged on one side of the valve seat close to the spray hole hedging device (5).
6. The orifice-type high-ratio pressure reducing and energy dissipating valve according to claim 1, wherein: two water inlet holes (5-1) in each group of the hedging water inlet holes are symmetrically distributed relative to the central axis of the orifice hedging device (5).
7. The orifice-type high-ratio pressure reducing and energy dissipating valve according to claim 1, wherein: the sealing structure is a low-pressure sealing ring (14), and an annular mounting groove for mounting the low-pressure sealing ring (14) is formed in the outer side of the arc-shaped flange (6-2).
8. The orifice-type high-ratio pressure reducing and energy dissipating valve according to claim 7, wherein: the valve body (1) is internally provided with a guide sliding ring (7) which is matched with the arc-shaped flange (6-2), and the low-pressure sealing ring (14) is arranged in the annular mounting groove and is tightly attached to the guide sliding ring (7).
9. The orifice-type high-ratio pressure reducing and energy dissipating valve according to claim 1, wherein: the sealing structure is a diaphragm (16), an annular edge (15) extending inwards is arranged on the outer side of one end of the arc-shaped flange (6-2), and an annular gap for installing the diaphragm (16) is formed between the annular edge (15) and the arc-shaped flange (6-2).
10. The orifice-type high-ratio pressure reducing and energy dissipating valve according to claim 9, wherein: the diaphragm (16) comprises a circular truncated cone-shaped diaphragm sealing cylinder (16-1) and a first annular diaphragm connecting piece (16-2) and a second annular diaphragm connecting piece (16-3) which are arranged at two ends of the circular truncated cone-shaped diaphragm sealing cylinder (16-1), the first annular diaphragm connecting piece (16-2) is fixedly arranged in the annular gap, and the second annular diaphragm connecting piece (16-3) is fixed between the valve body (1) and the water outlet flow guide pipe (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921013516.4U CN210372284U (en) | 2019-07-01 | 2019-07-01 | Jet hole type high-proportion pressure reduction energy dissipation valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921013516.4U CN210372284U (en) | 2019-07-01 | 2019-07-01 | Jet hole type high-proportion pressure reduction energy dissipation valve |
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| Publication Number | Publication Date |
|---|---|
| CN210372284U true CN210372284U (en) | 2020-04-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921013516.4U Active CN210372284U (en) | 2019-07-01 | 2019-07-01 | Jet hole type high-proportion pressure reduction energy dissipation valve |
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| CN (1) | CN210372284U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110206938A (en) * | 2019-07-01 | 2019-09-06 | 西安济源水用设备技术开发有限责任公司 | A kind of orifice type high proportion decompression energy dissipating valve |
-
2019
- 2019-07-01 CN CN201921013516.4U patent/CN210372284U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110206938A (en) * | 2019-07-01 | 2019-09-06 | 西安济源水用设备技术开发有限责任公司 | A kind of orifice type high proportion decompression energy dissipating valve |
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